JP2019053099A - Information system, driving support information providing method, on-vehicle terminal - Google Patents

Abstract

To provide driving support information which is considered driving advancement degree for inexperienced drivers of driving.SOLUTION: An information system comprises an on-vehicle terminal 200 which is mounted on a self-vehicle and a sever 100 which communicates with the on-vehicle terminal 200. The sever 100 comprises a running history DB 116 where a running history of the self-vehicle is memorized in each driver, a driving advancement degree judgement part 115, a driving advancement degree DB 119 in which driving advancement degree judged by the driving advancement degree judgement part 115 is memorized, and a delivery information control part 123 which deliveries driving support information based on the driving advancement degree memorized in the driving advancement degree DB 119 to the on-vehicle terminal 200. The driving advancement degree judgement part 115 judges the driving advancement degree of the driver on the basis of the running history memorized in the running history DB 116 and a driving technology element definition list 113 which appears predefined degree of driving difficulty in each driving technology element.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information system, a driving support information providing method, and an in-vehicle terminal.

  In recent years, an increasing number of drivers who do not own private cars and use services such as car rental and car sharing as needed. Such drivers are generally less frequent and are unfamiliar with driving than drivers who own private cars. In addition, the driver's service use purpose is often used for shopping near the home, so a fixed route near the home can be driven without anxiety, but it may cause anxiety when going out. . For this reason, there is an increasing need to provide driving support information in consideration of driving proficiency for drivers who are unfamiliar with driving.

  For example, in Patent Document 1, in the server cost recognition correction element provided in the navigation server, the road environment of the target segment and the relative relationship between the target segment and one or more other segments included in the server route candidate are described. A technique for evaluating a segment cost index value indicating the degree of difficulty in passing a target segment for at least one of a plurality of indexes indicating one or both of relationships, and correcting the cost of the target segment by a segment cost index value of the target segment It is disclosed.

JP 2017-49044 A

  In the prior art described in Patent Document 1, it is possible to perform a route search while avoiding a route in which a driver easily feels that the load is high during driving. However, it is not possible to provide driving support information in consideration of driving proficiency for drivers who are unfamiliar with driving.

An information system according to the present invention includes an in-vehicle terminal mounted on a vehicle and a server that communicates with the in-vehicle terminal, and the server includes a travel history database in which a travel history of the vehicle is stored for each driver; Driving proficiency determination for determining the driving proficiency of the driver for each driving technology element based on the driving history stored in the driving history database and the driving difficulty level predefined for each driving technology element A driving proficiency database in which the driving proficiency determined for each driving technology element by the driving proficiency determining unit is stored, and driving support information based on the driving proficiency stored in the driving proficiency database A distribution information control unit that distributes the information to the in-vehicle terminal.
The driving support information providing method according to the present invention is a method of providing driving support information from a server to an in-vehicle terminal, storing a driving history of a vehicle in which the in-vehicle terminal is mounted in the server for each driver, Based on the driving history and the difficulty of driving defined in advance for each driving technology element, the server determines the driving skill for each driving technology element of the driver, and driving support information based on the driving skill level Is distributed from the server to the in-vehicle terminal.
An in-vehicle terminal according to the present invention is mounted on a vehicle, and a travel history acquisition unit that acquires a travel history of the vehicle, and the travel history acquired by the travel history acquisition unit as a driver of the vehicle. A driving unit for each driving technology element of the driver based on the driving support information received by the communication unit and the communication unit receiving the driving support information distributed from the server, in association with the server. A driving support unit that performs driving support to the driver according to the proficiency level.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance information which considered the driving skill can be provided for the driver unfamiliar with driving.

1 is a hardware configuration diagram of an information system according to an embodiment of the present invention. 1 is a system configuration diagram of an information system according to an embodiment of the present invention. Figure showing an example of the destination list Diagram showing an example of the list of operation technology element definitions The figure which shows the example of driving skill DB Figure showing an example of an attention point list Diagram showing examples of requirements for driving proficiency Figure showing an example of practice point list Route evaluation sequence diagram The figure which shows the processing flow of route evaluation processing Sequence diagram for judgment of driving proficiency The figure which shows the processing flow of the driving skill calculation processing Sequence diagram for driving support before travel The figure which shows the processing flow of practice technical requirement calculation processing The figure which shows the processing flow of practice point extraction processing The figure which shows the processing flow of practice route search processing Travel assistance sequence diagram The figure which shows the processing flow of attention point extraction processing Diagram showing the processing flow of the alert process The figure which shows the example of a screen when suggesting a practice point to a driver

  FIG. 1 is a diagram showing a hardware configuration of an information system according to an embodiment of the present invention. The information system shown in FIG. 1 includes a server 100 and an in-vehicle terminal 200. The server 100 includes an output unit 101, an input unit 102, an auxiliary storage device 103, a communication unit 104, a CPU 105, and a RAM 106. The in-vehicle terminal 200 is an information processing apparatus that is used by being mounted on a vehicle, and includes a display device 201, an operation device 202, a positioning sensor 203, a communication unit 204, a ROM 205, a RAM 206, an auxiliary storage device 207, and a CPU 208. Hereinafter, a vehicle in which the in-vehicle terminal 200 is mounted is referred to as “own vehicle”.

  The server 100 and the in-vehicle terminal 200 communicate with each other via the network 300 using the communication unit 104 and the communication unit 204, respectively. The network 300 is composed of, for example, a mobile phone line or the Internet.

  In the server 100, the output unit 101 is connected to a display (not shown) and displays the processing result of the CPU 105 on the display. The input unit 102 is connected to an input device (not illustrated) such as a touch panel, a keyboard, and a mouse, and inputs an instruction from the administrator of the server 100 performed using the input device to the server 100. The auxiliary storage device 103 is a storage device that stores application programs and various data used by the applications, and is configured by, for example, an HDD or an SSD. The communication unit 104 is connected to the network 300 and exchanges various data with the in-vehicle terminal 200 via the network 300. The CPU 105 is an arithmetic / control unit that implements various functions to be described later in the server 100 by executing an application program loaded from the auxiliary storage device 103 onto the RAM 106. The RAM 106 is a storage device that loads an application program stored in the auxiliary storage device 103 and temporarily stores data used for processing by the CPU 105.

  In the in-vehicle terminal 200, the display device 201 is a device that displays image information, such as a liquid crystal display or an organic EL display. The operation device 202 is a device that receives an operation of a user such as a driver with respect to the in-vehicle terminal 200, and includes, for example, a button, a switch, a keyboard, a touch panel, and the like. The positioning sensor 203 is a sensor for measuring the position of the host vehicle. The positioning sensor 203 is composed of, for example, a GPS sensor. The communication unit 204 is connected to the network 300 and communicates with the server 100. The ROM 205 is a read-only storage device in which a control program executed by the CPU 208 is stored. The RAM 206 is a storage device that temporarily stores information used for processing by the CPU 208. The RAM 206 loads, for example, the application program stored in the auxiliary storage device 207 when the CPU 208 executes the program, or temporarily stores information generated by the program being executed by the CPU 208. Used. The auxiliary storage device 207 is a storage device that stores map data, audio data, car navigation application programs, and the like, and includes an HDD, an SSD, or the like. The CPU 208 is an arithmetic processing device that can execute a program, and controls each unit of the in-vehicle terminal 200 based on a control program stored in the ROM 205. Further, by executing various application programs loaded from the auxiliary storage device 207 onto the RAM 206, various functions such as car navigation are realized in the in-vehicle terminal 200.

  FIG. 2 is a diagram showing a system configuration of an information system according to an embodiment of the present invention. The server 100 functions as a map database 112, a route evaluation unit 114, a driving skill level determination unit 115, a travel history database 116, a driving skill level database 119, a practice skill requirement calculation unit 121, a warning point extraction unit 122, a distribution An information control unit 123 and a communication unit 104 are provided. In addition, the server 100 includes information on a destination list 111, a driving technology element definition list 113, a driving skill requirement 117, and an attention point list 118. Such information, and each database (hereinafter referred to as “DB”) of the map database 112, the travel history database 116, and the driving skill database 119 are stored in, for example, the auxiliary storage device 103 of FIG. On the other hand, each functional block of the route evaluation unit 114, the driving skill level determination unit 115, the practice skill requirement calculation unit 121, the alerting point extraction unit 122, and the distribution information control unit 123 is, for example, a process executed by the CPU 105 in FIG. Realized. The communication unit 104 is the same as that shown in FIG.

  The in-vehicle terminal 200 includes a travel history database 211, a map database 212, a practice point extraction unit 213, a driving support unit 219, and a communication unit 204 as its functions. The in-vehicle terminal 200 includes information on a driving technology element definition list 214, a practice point list 216, and a warning point list 218. These information and each database (hereinafter referred to as “DB”) of the travel history database 211 and the map database 212 are stored in the auxiliary storage device 207 of FIG. 1, for example. On the other hand, each functional block of the practice point extraction unit 213 and the driving support unit 219 is realized as processing executed by the CPU 208 of FIG. 1, for example. The communication unit 204 is the same as that shown in FIG.

  In the server 100, the destination list 111 is information indicating a list of destinations that the host vehicle plans to visit. The server 100 stores information indicating destinations of travel destinations registered in advance by the driver of the host vehicle as a destination list 111. The destination list 111 is used in the route evaluation unit 114. The driver of the host vehicle can set information registered in the destination list 111 in the server 110 in advance using an information terminal such as a PC (personal computer) or a smartphone (not shown). In addition, the own vehicle is not limited to a private vehicle, but may be a car used for a rental car or car sharing. Therefore, a plurality of drivers may exist for one own vehicle. 2 shows only one in-vehicle terminal 200 connected to the server 100, but in an actual information system, a plurality of in-vehicle terminals 200 are connected to one server 100. In this case, all the vehicles on which the in-vehicle terminals 200 are mounted are treated as the own vehicle. Therefore, in the destination list 111, information on destinations individually registered by a plurality of drivers is recorded.

  The map DB 112 stores map data used by the route evaluation unit 114 for route calculation of the host vehicle.

  The driving technology element definition list 113 is information indicating road conditions and traffic conditions in which a driver unfamiliar with driving or a driver with inadequate driving skill feels a driving load when driving the vehicle, together with the difficulty of driving. is there. The server 100 stores a relationship between road conditions and traffic conditions defined in advance for each driving technology element and the difficulty level of driving as a driving technology element definition list 113. The driving technology element definition list 113 is used in the route evaluation unit 114 and the driving skill determination unit 115.

  The route evaluation unit 114 calculates the driving skill requirement requirement 117 and the caution point list 118 based on the destination list 111, the map DB 112, and the driving technology element definition list 113. The driving skill necessary requirement 117 is information indicating the driving skill for each driving technology element required when the host vehicle travels the route to the destination registered in the destination list 111. The caution point list 118 is a point on a specific route that requires attention from a driver who is deficient in driving skill when the host vehicle travels the route to the destination registered in the destination list 111. This is information indicating a list of certain attention points.

  The travel history DB 116 stores the travel history of the host vehicle for each driver. In addition, when there are a plurality of drivers for one vehicle as described above, or when a plurality of vehicles are connected to the server 100, the driving history for all these drivers is displayed as the driver. Every time it is recorded in the travel history DB 116. The driving skill level determination unit 115 determines the driving skill level for each driver based on the driving history stored in the driving history DB 116 and the driving technology element definition list 113, and the driving skill level. Store in the DB 119.

  Based on the driving skill requirement requirement 117 and the driving skill level of each driver stored in the driving skill DB 119, the practice skill requirement calculation unit 121 calculates a practice skill requirement that the driver should practice in advance. . Here, when the host vehicle travels the route to the destination registered in the destination list 111, the driving technical element lacking the driver's experience on the route is determined from the driving skill level of the driver. By specifying, the practice skill requirement is calculated.

  The alerting point extracting unit 122 should alert the driver of the own vehicle based on the alerting point list 118 and the driving proficiency level of each driver stored in the driving proficiency level DB 119. To extract. Here, among the caution points represented by the caution point list 118, it is determined whether or not there is a caution point that lacks the experience of the driving technical element necessary for driving from the driving skill level of the driver. Attention points are extracted as attention points.

  The distribution information control unit 123 uses the communication unit 104 to distribute driving support information based on the driving proficiency level of each driver stored in the driving proficiency level DB 119 to the in-vehicle terminal 200. The distribution information control unit 123 receives the information on the practice technique requirement calculated by the practice technique requirement calculation unit 121 or the information on the attention point extracted by the attention point extraction unit 122 according to the access from the in-vehicle terminal 200. Deliver driving assistance information including either. For example, the date on which the host vehicle is scheduled to go to the destination registered in the destination list 111 is compared with the current date when access from the in-vehicle terminal 200 is performed. As a result, if the current date is earlier than the date scheduled to go to the destination, driving assistance information including information on practice technical requirements will be delivered, and the current date will match the date scheduled to go to the destination That is, if it is the day of the travel schedule, driving support information including information on the alert points is distributed.

  In the in-vehicle terminal 200, the traveling history DB 211 stores the traveling history of the host vehicle on which the in-vehicle terminal 200 is mounted, classified for each driver who has driven the host vehicle so far. As described above, when there are a plurality of drivers for one vehicle, the driving history for all the drivers is recorded in the driving history DB 211 for each driver. Alternatively, when the driver starts using the host vehicle, the driving history of the driver recorded in the driving history DB 116 of the server 100 is downloaded from the server 100 to the in-vehicle terminal 200 and recorded in the driving history DB 211. May be. In this case, it is preferable to delete the travel history DB 211 after each driver uploads the travel history to the server 100 and finishes using the own vehicle.

  Map data similar to the map DB 112 of the server 100 is stored in the map DB 212. The driving technology element definition list 214 is the same information as the driving technology element definition list 113 of the server 100 and is used in the practice point extraction unit 213.

  When the driving support information including the information on the above-mentioned practice technique requirements is distributed from the server 100, the communication unit 204 receives this and outputs it to the practice point extraction unit 213. The practice point extraction unit 213 extracts the practice point list 216 based on the information on the practice technique requirements in the driving support information received from the server 100, the travel history DB 211, the map DB 212, and the driving technique element definition list 214. The practice point list 216 is information indicating a list of practice points, which are specific points for allowing the driver to practice practice technical requirements in advance.

  On the other hand, when the driving support information including the information on the above-described alerting points is distributed from the server 100, the communication unit 204 receives this and outputs the alerting point list 218 to the driving support unit 219. The attention point list 218 is information indicating a list of attention points extracted by the attention point extraction unit 122 of the server 100. That is, the alerting point list 218 indicates points where alerting should be performed at points that require driving technology elements that are insufficient for the driver of the host vehicle.

  The driving support unit 219 performs driving support for the driver of the host vehicle based on the practice point list 216 or the alerting point list 218. Specifically, when the practice point list 216 is input, the driving support unit 219 searches for a route including the practice points as a practice route. For example, when the host vehicle approaches a practice point indicated by the practice point list 216, the driving support unit 219 searches for a practice route by setting the practice point as a destination or waypoint. Do. Then, the vehicle is guided according to the searched practice route so that the driver can obtain driving experience at the practice point.

  On the other hand, when the alerting point list 218 is input, the driving support unit 219 performs driving support by alerting the driver to the alerting points indicated by the alerting point list 218. For example, when the host vehicle approaches before any one of the alert points shown in the alert point list 218, the driving support unit 219 assists the driver who is unfamiliar with driving at the alert point. And voice notifications to the driver according to the required driving technology elements.

  Next, specific examples of each information and each DB described in FIG. 2 will be described with reference to FIGS.

  FIG. 3 is a diagram illustrating an example of the destination list 111. In the destination list 111 shown in FIG. 3, information on a travel route ID 301, a travel date 302, a destination name 303, a destination coordinate 304, and a travel order 305 is stored for each destination. The travel itinerary ID 301 is information indicating a value that can uniquely identify the travel itinerary toward the destination. In the case of a plan to stop at a plurality of destinations in one trip, a common value is set for the travel ID 301 of each row corresponding to those destinations. Travel date 302 is information indicating a date on which the host vehicle is scheduled to travel to the destination. The destination name 303 is information indicating the name of the destination. The destination coordinates 304 are information indicating the coordinates of the destination. The travel order 305 is information indicating the order of stopping at the destination during the travel process. That is, when a stop to a plurality of destinations is scheduled in one travel itinerary, the value of the travel order 305 for each line is set according to the stop order in the travel itinerary. In FIG. 3, different contents for each driver are stored in the server 100 as the destination list 111, and an example of a certain driver's destination list 111 is shown. The location information may be combined into a single destination list 111. In this case, it is preferable that the driver's destination information can be identified by a method such as assigning a different ID number to each driver.

  FIG. 4 is a diagram illustrating an example of the driving technology element definition lists 113 and 214. In the driving technology element definition lists 113 and 214 shown in FIG. 4, information on the technology classification 401 and the difficulty levels 402 to 405 is stored for each driving technology element. The technical classification 401 is information indicating the classification of the driving technical element. The difficulty levels 402 to 405 are information indicating the contents of road conditions and traffic conditions that define the driving difficulty level for the driving technology element, and the driving difficulty levels are represented by level 1 (Lv1) to level 4 (Lv4). ing. That is, the higher the number of levels, the higher the difficulty of driving.

  FIG. 5 is a diagram illustrating an example of the driving skill DB 119. In the driving skill level DB 119 shown in FIG. 5, information on a user ID 501 and driving skill levels 502 to 507 is stored for each driver. The user ID 501 is information indicating a value that can uniquely identify each driver. The driving proficiency 502 to 507 is information indicating the driving proficiency of the driver, and the driving proficiency for each of the driving technology elements defined in the driving technology element definition list 113 is any one of levels 1 to 4. Represented by value. The level values of the driving skill levels 502 to 507 correspond to the level values defined by the difficulty levels 402 to 405 of the driving technology element definition list 113 shown in FIG. For example, in the example of FIG. 5, a driver whose user ID 501 is 100 has a driving skill 502 value of 2 corresponding to the driving technology element of “lane movement”. Therefore, this driver is level 2 driving technology regarding lane movement, that is, driving technology of “passing more than 3 lanes” shown in the difficulty level 403 of the row whose technical classification 401 is “lane movement” in the table of FIG. Indicates that you have already learned

  Note that the level value of the driving skill level of each driver in the driving skill level DB 119 of FIG. 5 is determined by the driving skill level determination unit 115 as described above. At this time, the driving skill level determination unit 115 determines that the vehicle has traveled in the past in a place corresponding to the driving technology element defined for each level in the driving technology element definition list 113 based on the driving history stored in the driving history DB 116. By determining for each driver whether or not he / she has done, the level value of the driving skill level of each driver is determined.

  FIG. 6 is a diagram illustrating an example of the attention point list 118. In the attention point list 118 illustrated in FIG. 6, information on a travel process ID 601, attention point ID 602, driving technology classification 603, difficulty 604, and coordinates 605 is stored for each attention point. The travel itinerary 601 is information indicating a value by which the host vehicle can uniquely identify a travel itinerary that passes the attention point, and corresponds to the travel itinerary ID 301 in the destination list 111 shown in FIG. The attention point ID 602 is information indicating a value capable of uniquely identifying the attention point. The driving technology classification 603 is information indicating the classification of the driving technology element corresponding to the attention point, and corresponds to the technical classification 401 of the driving technology element definition list 113 shown in FIG. The difficulty level 604 represents the difficulty level of driving at the caution point as a level value of any one of 1-4. The level value of the difficulty level 604 is the level value defined for the classification of the driving technology element indicated by the driving technology classification 603 out of the difficulty levels 402 to 405 of the driving technology element definition list 113 shown in FIG. It corresponds. The coordinates 605 are information indicating the coordinates of the attention point. If it is appropriate to handle the attention point as link information, such as when the driving technology element classification indicated by the driving technology classification 603 is “lane movement”, the link ID, the coordinate value of the point sequence, etc. May be stored.

  The attention point list 118 in FIG. 6 is used when the attention drawing point extraction unit 122 extracts the attention drawing point as described above. At this time, the attention point extraction unit 122 sets the values of the driving proficiency levels 502 to 507 in the driving proficiency level DB 119 shown in FIG. 5 and the attention point list 118 in FIG. The values of the driving technology classification 603 and the difficulty level 604 are compared. As a result, from the attention points indicated by the attention point list 118, an attention point that requires a driving technology element lacking experience for the driver is specified, and is extracted as a warning point. Therefore, the attention point list 218 output from the communication unit 204 to the driving support unit 219 in the in-vehicle terminal 200 is also configured by the same information as the attention point list 118 illustrated in FIG.

  FIG. 7 is a diagram illustrating an example of the driving skill requirement requirement 117. In the driving proficiency level requirement 117 shown in FIG. 7, information on a travel process ID 701 and difficulty levels 702 to 707 is stored for each travel process. The travel itinerary ID 701 is information indicating a value by which the host vehicle can uniquely identify a travel itinerary that passes the attention point, and corresponds to the travel itinerary ID 301 in the destination list 111 shown in FIG. The difficulty levels 702 to 707 are information indicating the driving skill level required when the driver drives the vehicle according to the travel process, and the driving skill level defined in the driving technology element definition list 113 is the driving skill level. The proficiency level is represented by any one of level values 1-4. The level values of the difficulty levels 702 to 707 are the difficulty levels 402 to 405 in the driving technology element definition list 113 shown in FIG. 4, similarly to the driving skill levels 502 to 507 of the driving skill level DB 119 shown in FIG. 5. Corresponds to a defined level value.

  The driving skill requirement requirement 117 shown in FIG. 7 is used when the practice technique requirement calculation unit 121 calculates the practice technique requirement as described above. At this time, the practice skill requirement calculation unit 121 determines the driving skill levels 502 to 507 in the driving skill DB 119 shown in FIG. 5 and the driving skill requirement requirement of FIG. The value of the difficulty 702-707 in 117 is compared. As a result, among the combinations of the driving skill elements and the driving skill levels indicated by the driving skill requirement requirement 117, the combinations of the driving skill elements and the driving skill levels for which the driver has insufficient experience are identified and practiced. Extract as technical requirements. Therefore, the information on the practice technique requirements distributed from the server 100 to the in-vehicle terminal 200 is also configured by the same information as the driving skill requirement requirement 117 shown in FIG.

  FIG. 8 is a diagram illustrating an example of the practice point list 216. In the practice point list 216 shown in FIG. 8, each information of practice point ID 801, driving skill classification 802, difficulty 803, and coordinates 804 is stored for each practice point. The practice point ID 801 is information indicating a value that can uniquely identify the practice point. The driving skill classification 802 is information indicating the classification of the driving skill element corresponding to the practice point, and corresponds to the technical classification 401 of the driving skill element definition list 113 shown in FIG. The difficulty level 803 represents the difficulty level of driving at the practice point as a level value of any one of 1-4. Similar to the difficulty level 604 in the caution point list 118 of FIG. 6, the level value of the difficulty level 803 is the driving technology classification 802 among the difficulty levels 402 to 405 of the driving technology element definition list 113 shown in FIG. Corresponds to the level value defined for the category of driving technology element shown. The coordinate 804 is information indicating the coordinates of the practice point. Similar to the coordinate 605 in the caution point list 118 of FIG. 6, when it is more appropriate to treat the practice point as link information, such as when the classification of the driving technique element indicated by the driving technique classification 802 is “lane movement”. May store the link ID, the coordinate value of the point sequence, and the like in the coordinates 804.

  Next, a specific example of driving support performed by the information system according to the present embodiment will be described with reference to FIGS. 9 to 18 together with the operation of each functional block included in the server 100 and the in-vehicle terminal 200 shown in FIG. To do.

  FIG. 9 is a sequence diagram of route evaluation performed by the information system in order to evaluate the degree of necessity of driving support for the route on which the host vehicle is scheduled to travel.

  In step S <b> 101, the driver of the host vehicle inputs information related to a destination for a future trip to an information terminal such as a PC or a smartphone (not shown). The destination information input in step S101 is transmitted to the server 100 as a destination list. The destination list transmitted from the information terminal to the server 100 is stored in the server 100 as the destination list 111 illustrated in FIG.

  In step S102, the route evaluation unit 114 of the server 100 executes route evaluation processing based on the destination information indicated by the destination list 111. In this route evaluation process, the route evaluation unit 114 calculates the attention point list 118 and the driving skill requirement 117. Here, the route to the destination registered in the destination list 111 is searched, and the point to be watched by the driver on the route is specified as the point of caution, thereby calculating the point of caution list 118. Further, the driving skill required requirement 117 is calculated by obtaining the driving skill required for the driver to drive the host vehicle along the route. Details of step S102 are shown in FIG.

  In step S103, the route evaluation unit 114 stores the attention point list 118 and the driving skill requirement 117 calculated in step S102.

  FIG. 10 is a diagram showing a processing flow of the route evaluation process executed in step S102 of FIG.

  In step S201, the route evaluation unit 114 refers to the destination list 111 and searches for a route from the departure point to the destination using the map DB 112. In that case, the destination list 111 has the same value of the travel itinerary ID 301 as one travel itinerary, the destinations are sequentially set according to the information of the travel order 305, and each destination is determined from the departure point using the map DB 112. The route from the ground to the final destination is calculated. For example, in the case of the destination list 111 illustrated in FIG. 3, the destination “00 plateau” in the first row where the value of the travel order 305 is 1 and the second row where the value of the travel order 305 is 2. The destination “yy park” is set as a waypoint, and the destination “xx cafe” in the third row with the value of the travel order 305 being 3 is set as the final destination. A parking lot or a home where vehicles are placed on the day may be set in advance as the departure point of this route. In addition, a route is calculated for each destination, such as calculating the route from the starting point to the first destination, and then searching for the route to the next destination using that destination as the starting point. The route from the departure point to the final destination may be searched by connecting the obtained routes according to the travel order.

  In step S202, the route evaluation unit 114 refers to the driving technology element definition list 113 and extracts a caution point corresponding to the route calculated in step S201. Here, for each road on the route, the presence / absence of a point corresponding to the road situation or traffic situation defined by the difficulty levels 402 to 405 in FIG. 4 is determined. A point is extracted as an attention point. In this way, each point having a high driving load on the route is extracted as a caution point.

  In step S203, the route evaluation unit 114 calculates the attention point list 118 representing each attention point extracted in step S202. Here, the classification and the level of difficulty of the driving technology elements corresponding to each caution point are specified from the driving technology element definition list 113, and the identified information is combined with the coordinate value and ID of each caution point, The attention point list 118 as shown in FIG. 6 is calculated.

  In step S204, the route evaluation unit 114 calculates the driving skill requirement 117 for each travel process based on the attention point list 118 calculated in step S203. Here, for each travel itinerary indicated by the destination list 111, the level of difficulty that is maximum between the attention points on the route in the travel itinerary is specified from the attention point list 118 for each driving technology element. Then, the driving skill requirement requirement 117 as shown in FIG. 7 is calculated by collecting the maximum level of difficulty for each identified driving technology element for each travel process. If step S204 is performed, the path | route evaluation part 114 will complete | finish the processing flow of FIG.

  FIG. 11 is a sequence diagram of the driving skill determination performed by the information system in order to obtain the driving skill of the driver from the traveling history of the host vehicle.

  In step S301, the in-vehicle terminal 200 records the travel history of the host vehicle in the travel history DB 211 in association with the driver. The travel history recorded in step S301 is transmitted to the server 100 at a predetermined timing, for example, when the in-vehicle terminal 200 is turned on or off.

  In step S302, the server 100 stores the travel history received from the in-vehicle terminal 200 in the travel history DB 116 for each driver.

  In step S <b> 303, the driving skill level determination unit 115 of the server 100 performs driving skill level calculation processing based on the travel history stored in the travel history DB 116. Here, the number of experiences for each driving technology element defined in the driving technology element definition list 113 is counted for each driver based on the driving history of each driver stored in the driving history DB 116. Driving proficiency for each driving skill element is calculated. Details of step S303 are shown in FIG.

  In step S304, the driving skill level determination unit 115 stores the driving skill level calculated for each driving technology element in step S303 in the driving skill level DB 119.

  FIG. 12 is a diagram showing a processing flow of the driving skill level calculation process executed in step S303 of FIG. In addition, when the driving history about a several driver | operator is preserve | saved in driving | running history DB116, the driving skill level determination part 115 implements the processing flow of FIG. 12 for every driver | operator.

  In step S401, the driving skill level determination unit 115 reads a travel history from the travel history DB 116, and determines whether there is an unconfirmed road in the travel history. As a result, if there is an unconfirmed road, the process of step S402 is performed, and if all the roads have been confirmed, the process of step S405 is performed.

  In step S402, the driving skill level determination unit 115 extracts the road determined to be unconfirmed in step S401 from the travel history DB 116. At this time, an unconfirmed road may be extracted as a road line in which a plurality of roads are collected. For example, an unconfirmed road train can be extracted in a unit that is easy to process, such as dividing every predetermined distance or intersection.

  In step S403, the driving skill level determination unit 115 checks whether or not the road extracted in step S402 includes a location corresponding to one of the driving technology elements defined in the driving technology element definition list 113. If the corresponding place is not on the road, the process returns to step S401 as it is. If there is such a place, in step S404, the number of experiences for the driving skill element at that place is counted up, and then the process returns to step S401. That is, when there is a place on the extracted road that corresponds to either the road situation or the traffic situation defined by the level of each driving technique element in the driving technique element definition list 113 illustrated in FIG. , Count up the number of times of experience at the level of the driving skill element. In addition, when the extracted road corresponds to several driving | running technology elements, it is preferable to count up the frequency | count of experience of each driving | running technology element.

  In step S405, the driving skill level determination unit 115 confirms the number of experiences of each driving technique element counted in steps S401 to S404. As a result, if there is a driving technology element whose number of experiences at any level is equal to or greater than a certain value, it is considered that the learning condition for the level of the driving technology element is satisfied, and the driving skill level is determined. At this time, if the upper level learning conditions for the same driving technology element are satisfied first, it may be considered that the lower level learning conditions are also satisfied. Alternatively, it may not be determined that the upper level learning conditions are satisfied until the lower level learning conditions are satisfied. In addition, in the driving technology element definition list 113, in addition to the definitions based on the road conditions and traffic conditions illustrated in FIG. 4, definitions based on environmental conditions such as traffic volume and weather are performed, and these are defined for each combination of these definitions. It may be determined whether or not the proficiency condition is satisfied with respect to the level of the driving skill element. For example, the driving proficiency level according to the environmental situation is determined by determining whether or not the proficiency condition is satisfied for each level of the driving technical element defined in advance in the case of rainy weather, snowfall, and traffic jam. be able to. If step S405 is performed, the driving | operation proficiency level determination part 115 will complete | finish the processing flow of FIG.

  FIG. 13 is a sequence diagram of pre-travel driving assistance that is performed by the information system in order to pre-load the driver with the driving experience necessary for the travel before the driver travels to the registered destination. . The server 100 uses the sequence diagram of FIG. 13 when a driver who has registered a destination whose date set as the travel date 302 in the destination list 111 is on or after the next day gets on his vehicle and uses this information system. Pre-travel driving assistance shown in

  In step S501, the practice skill requirement calculation unit 121 of the server 100 executes a practice skill requirement calculation process based on the driving skill requirement 117 and the driving skill of the driver stored in the driving skill DB 119. To do. In this practice technique requirement calculation process, the practice technique requirement calculation unit 121 has insufficient experience in the current driving skill level when driving the vehicle to the destination registered in the destination list 111 by the driver. Calculate practice skill requirements that indicate the driving skill elements that need practice. Details of step S501 are shown in FIG. The information on the practice technique requirement calculated in step S501 is distributed to the in-vehicle terminal 200 by the distribution information control unit 123 as a practice technique requirement list included in the driving support information.

  In step S502, the practice point extraction unit 213 of the in-vehicle terminal 200 acquires a practice technique requirement list from the driving support information distributed from the server 100, and executes practice point extraction processing using this. In this practice point extraction process, the practice point extraction unit 213 is based on the acquired practice skill requirement list, the travel history of the driver recorded in the travel history DB 211, the map DB 212, and the drive technology element definition list 214. Then, the practice point list 216 is extracted. Details of step S502 are shown in FIG.

  In step S503, the driving support unit 219 of the in-vehicle terminal 200 executes practice route search processing based on the practice point list 216 extracted in step S502. In this practice route search process, the driving support unit 219 searches for a practice route that passes through the practice points shown in the practice point list 216, and drives in accordance with the practice route so that the driver can obtain a driving experience necessary when traveling in advance. To help you get on. Details of step S503 are shown in FIG.

  FIG. 14 is a diagram showing a process flow of the practice technique requirement calculation process executed in step S501 of FIG.

  In step S <b> 601, the practice skill requirement calculation unit 121 compares the driving skill element of the driving skill requirement requirement 117 calculated by the route evaluation unit 114 with the driving skill level of the driver. Determine if there is an element. As a result, if there is an uncompared driving technology element, one of the driving technology elements is selected and the process proceeds to step S602. If all the driving technology elements have been compared, the processing flow of FIG. Exit.

  In step S602, the practice skill requirement calculation unit 121 stores the requirement level of the driving skill level defined in the driving skill requirement requirement 117, that is, the level of difficulty, and the driving skill level DB 119 for the driving skill element selected in step S601. The stored driving skill of the driver is compared. As a result, when the driving skill level of the driver is lower than the difficulty level of the driving skill level requirement 117, it is determined that the driving skill level of the driver does not satisfy the required level in the driving technical element, and the process is performed. The process proceeds to S603. On the other hand, if the driving skill level of the driver is equal to or higher than the difficulty level of the driving skill level requirement 117, it is determined that the driving skill level of the driver satisfies the required level in the driving technical element, and the step The process returns to S601.

  In step S <b> 603, the practice skill requirement calculation unit 121 includes the driving skill element selected in step S <b> 601 and the driving skill requirement requirement defined by the driving skill requirement requirement 117 for the driving skill element, that is, the difficulty level. To the list of practice skill requirements. When step S603 ends, the process returns to step S601.

  FIG. 15 is a diagram showing a processing flow of practice point extraction processing executed in step S502 of FIG.

  In step S701, the practice point extraction unit 213 uses the map DB 212 to start searching for a road in the direction in which the host vehicle is currently traveling, and selects a road in the traveling direction as a subsequent processing target.

  In step S702, the practice point extraction unit 213 confirms the driving history of the driver for the road in the traveling direction selected as the processing target in step S701 from the driving history recorded in the driving history DB 211, and the number of passes is constant. It is determined whether or not there are less than the number of times. As a result, if there is a road whose number of passages is less than or equal to a certain number, the road is extracted and the process proceeds to step S703. If the number of passages of all roads in the traveling direction exceeds the certain number, the process returns to step S701. Continue to search for roads.

  In step S703, the practice point extraction unit 213 determines whether the road extracted in step S701 satisfies the practice technique requirement based on the practice technique requirement list included in the driving support information distributed from the server 100. Here, using the driving skill element definition list 214, it is confirmed whether there is a place corresponding to the combination of the driving skill element and the difficulty level indicated in the practice skill requirement list on the road extracted in step S701. To do. As a result, if there is a corresponding place on the extracted road, the place is extracted as a practice point and the process proceeds to step S704. If not, the process returns to step S701.

  In step S704, the practice point extraction unit 213 adds the location extracted in step S703 to the practice point list 216. If step S704 is performed, the practice point extraction part 213 will complete | finish the processing flow of FIG.

  FIG. 16 is a diagram showing a process flow of the practice route search process executed in step S503 of FIG.

  In step S801, the driving support unit 219 uses the map DB 212 to determine whether or not the vehicle passes near any practice point indicated in the practice point list 216. If the host vehicle is traveling near any practice point, the practice point is extracted as a subsequent process target, and the process proceeds to the next step S802.

  In step S802, the driving support unit 219 inquires of the driver whether or not to practice the practice points extracted in step S801, and obtains a response from the driver. Here, for example, a screen such as “There is a practice point nearby, do you want to practice” is displayed on the display device 201 of the in-vehicle terminal 200, and the driver inputs the screen display using the operation device 202. A response operation may be detected. Further, an inquiry to the driver and detection of a response from the driver may be performed by a conversational voice response using a speaker or a microphone (not shown). As a result, if the driver approves the practice, the process proceeds to the next step S803. If the driver does not approve, the process returns to step S801 and waits until the next practice point is traveled.

  In step S803, the driving support unit 219 sets the practice point extracted in step S801 as a waypoint or destination, and guides the practice point so that the host vehicle can travel. Here, if the destination is being set, the practice point may be set as a transit point, and if the destination is not set, the practice point may be set as the destination. If step S803 is performed, the driving assistance part 219 will complete | finish the processing flow of FIG.

  FIG. 17 is a diagram for alerting the driver when traveling on a point where a driving skill element lacking the driver's experience is required on the day of traveling to the registered destination. It is a sequence diagram of the driving assistance at the time of travel performed by the information system. The server 100 is shown in the sequence diagram of FIG. 17 when the driver who registered the destination on the day of the date set as the travel date 302 in the destination list 111 uses the information system by getting on the own vehicle. Carry out driving assistance when traveling.

  In step S <b> 901, the attention drawing point extraction unit 122 of the server 100 executes attention drawing point extraction processing based on the attention point list 118 and the driving skill level of the driver stored in the driving skill level DB 119. In this alerting point extraction process, the alerting point extraction unit 122 alerts attention points that require driving technology elements lacking in the driver's experience from the attention points indicated in the attention point list 118. Extract as points. Details of step S901 are shown in FIG. The information on the alert points calculated in step S901 is distributed to the in-vehicle terminal 200 by the distribution information control unit 123 as the alert point list 218 included in the driving support information.

  In step S902, the driving support unit 219 of the in-vehicle terminal 200 acquires the alerting point list 218 from the driving support information distributed from the server 100, and executes the alerting process using this. In this alerting process, the driving support unit 219 alerts the driver when the vehicle passes the alerting point shown in the alerting point list 218 so that the driver can alert the alerting point. Assistance to ensure safe driving. Details of step S902 are shown in FIG.

  FIG. 18 is a diagram showing a processing flow of the alerting point extraction process executed in step S901 of FIG.

  In step S <b> 1001, the attention drawing point extraction unit 122 has not yet compared the driving skill level of the driver among the attention points indicated in the attention point list 118 calculated by the route evaluation unit 114. Determine if there are any points. As a result, if there are uncompared attention points, any one of the attention points is selected and the process proceeds to step S1002, and if all the attention points have been compared, the processing flow of FIG. .

  In step S1002, the attention point extraction unit 122 relates to the attention point selected in step S1001, the level of difficulty for the driving technology classification defined in the attention point list 118, and the driver stored in the driving skill DB 119. Compare driving proficiency with the relevant driving technology classification. As a result, when the driving skill level of the driver is lower than the difficulty level of the attention point list 118, it is determined that it is necessary to alert the driver about the attention point, and the process proceeds to step S1003. On the other hand, when the driving skill level of the driver is equal to or higher than the difficulty level of the attention point list 118, it is determined that the driver is not required to call the attention point, and the process returns to step S1001.

  In step S1003, the attention point extraction unit 122 adds the attention point selected in step S1001 to the attention point list as the attention point. When step S1003 is completed, the process returns to step S1001.

  FIG. 19 is a diagram showing a processing flow of the alerting process executed in step S902 of FIG.

  In step S1101, the driving support unit 219 acquires the destination list 111 related to the driver from the server 100, sets a destination indicated by the destination list 111, and performs a route search. And guidance guidance is started according to the searched route.

  In step S1102, the driving support unit 219 determines whether the host vehicle has arrived at the destination. If the destination has been reached, the processing flow of FIG. 19 is terminated. If the destination has not been reached, the processing proceeds to step S1103.

  In step S1103, the driving support unit 219 uses the map DB 212 to determine whether or not the host vehicle passes a point immediately before any one of the alert points shown in the alert point list 218. If the vehicle is traveling at a point in front of any of the alert points, the alert point is extracted as a subsequent process target, and the process proceeds to the next step S1104.

  In step S1104, the driving support unit 219 alerts the driver to the alerting point extracted in step S1103. As a method for alerting the driver, for example, a predetermined guidance screen may be displayed on the display device 201 of the in-vehicle terminal 200 or guidance by voice may be used. This alerting content may be changed for each level of driving skill classification and driving proficiency corresponding to the alerting point. When step S1104 is completed, the process returns to step S1002.

  FIG. 20 is a diagram illustrating an example of a screen displayed on the display device 201 when the practice point is proposed to the driver in step S802 of FIG.

  FIG. 20A is an example of a screen when a practice point for a right turn is proposed. When a point on the road such as a right turn at an intersection is proposed as a practice point, a screen showing the point on a map is displayed on the display device 201 as shown in FIG.

  FIG. 20B shows an example of a screen when proposing lane movement practice points. When a certain range rather than a single point on the road is proposed as a practice point, such as lane movement during road travel, for example, as shown in FIG. 201 is displayed. In the screen example of FIG. 20B, the travel lanes before and after the movement are highlighted, and the position of the lane movement on the map is shown as the lane movement timing.

  According to one embodiment of the present invention described above, when a driver unfamiliar with driving travels far away on a trip, the road shape or Practice driving in traffic conditions. Therefore, anxiety about driving during travel can be reduced. In addition, since a place familiar to the driver is used as a practice point, the driver can practice driving necessary for travel following daily driving such as shopping. Therefore, it is expected to reduce the anxiety of practice and improve the practice opportunities. Furthermore, since driving proficiency is taken into consideration for each driver, driving support can be performed using an appropriate place for each driver as a practice point or a warning point.

  According to one embodiment of the present invention described above, the following operational effects are obtained.

(1) The information system includes an in-vehicle terminal 200 mounted on the host vehicle and a server 100 that communicates with the in-vehicle terminal 200. The server 100 includes a travel history DB 116 in which the travel history of the host vehicle is stored for each driver, a driving skill level determination unit 115, and a driving skill level in which the driving skill level determined by the driving skill level determination unit 115 is stored. DB119 and the delivery information control part 123 which distributes the driving assistance information based on the driving skill memorize | stored in driving skill DB119 to the vehicle-mounted terminal 200 are provided. The driving skill level determination unit 115 is based on the driving history stored in the driving history DB 116 and the driving skill element definition list 113 representing the driving difficulty level defined in advance for each driving skill element. Degree is determined for each driving technology element. Since it did in this way, the driving assistance information which considered the driving skill level can be provided for the driver unfamiliar with driving.

(2) The server 100 further includes a practice technique requirement calculation unit 121 that calculates practice technique requirements that the driver should practice in advance based on the driving skill level. The distribution information control unit 123 distributes driving support information including information on the practice technique requirement calculated by the practice technique requirement calculation unit 121 to the in-vehicle terminal 200 (FIG. 13, step S501). Upon receiving the driving support information, the in-vehicle terminal 200 searches for a practice route including practice points for allowing the driver to practice practice technical requirements in advance based on the received driving support information (FIG. 13, step S503). The vehicle is guided according to the searched practice route. Since it did in this way, before a driver | operator makes a trip to the destination, a driver | operator can be accumulated beforehand the driving experience required in the trip.

(3) The server 100 further includes a caution point extraction unit 122 that extracts a caution point that is a point that should be alerted to the driver when the host vehicle travels the route to the destination based on the driving skill level. Prepare. The distribution information control unit 123 distributes the driving support information including the information on the attention points extracted by the attention point extraction unit 122 to the in-vehicle terminal 200 (FIG. 17, step S901). When receiving the driving support information, the in-vehicle terminal 200 performs driving support for the driver with respect to the alerting point based on the received driving support information (step S902 in FIG. 17). As a result, on the day when the driver travels to the destination, the driver can be alerted when traveling on a point where a driving technology element lacking the driver's experience is required. .

(4) The distribution information control unit 123 selects either the pre-travel driving support shown in FIG. 13 or the driving support during travel shown in FIG. 17 according to the date on which the host vehicle is going to the destination and the current date. To change the content of the driving support information distributed to the in-vehicle terminal 200. Since it did in this way, the driving assistance information appropriate for the driver at that time can be delivered from the server 100 to the in-vehicle terminal 200 in both cases before the trip and on the day of the trip.

  In the embodiment described above, the information system can implement both the pre-travel driving support described with reference to FIG. 13 and the driving support during travel described with reference to FIG. Although the example which selectively implements one of these driving assistance by comparing the set date and the current date has been described, the information system may implement only one of the driving assistance. In this case, the server 100 only needs to have one of the practice technique requirement calculation unit 121 and the attention drawing point extraction unit 122 that corresponds to the driving assistance to be performed. Further, in the in-vehicle terminal 200, the driving support unit 219 only needs to implement one driving support based on the distribution information from the server 100. When only driving support during travel is performed, the practice point extracting unit 213 and the driving technology are used. The element definition list 214 is not necessary.

  The embodiment and various modifications described above are merely examples, and the present invention is not limited to these contents as long as the features of the invention are not impaired. Moreover, although various embodiment and the modification were demonstrated above, this invention is not limited to these content. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Server 101 Output part 102 Input part 103 Auxiliary storage device 104 Communication part 105 CPU
106 RAM
111 Destination List 112 Map DB
113 Driving technology element definition list 114 Route evaluation unit 115 Driving proficiency level determination unit 116 Travel history DB
117 Driving Proficiency Requirements 118 Caution Point List 119 Driving Proficiency DB
121 Practice technology requirement calculation unit 122 Attention point extraction unit 123 Distribution information control unit 200 In-vehicle terminal 201 Display device 202 Operation device 203 Positioning sensor 204 Communication unit 205 ROM
206 RAM
207 Auxiliary storage device 208 CPU
211 Travel history DB
212 Map DB
213 Practice point extraction unit 214 Driving technology element definition list 216 Practice point list 218 Warning point list 219 Driving support unit

Claims (12)

An in-vehicle terminal mounted on a vehicle, and a server that communicates with the in-vehicle terminal;
The server
A travel history database in which the travel history of the vehicle is stored for each driver;
Driving proficiency determination for determining the driving proficiency of the driver for each driving technology element based on the driving history stored in the driving history database and the driving difficulty level predefined for each driving technology element And
A driving proficiency database in which the driving proficiency determined for each driving technology element by the driving proficiency determination unit is stored;
An information system comprising: a distribution information control unit that distributes driving support information based on the driving proficiency stored in the driving proficiency database to the in-vehicle terminal. The information system according to claim 1,
The server further includes a practice technique requirement calculation unit that calculates practice technique requirements that the driver should practice in advance based on the driving skill level,
The distribution information control unit distributes the driving support information including information on the practice technique requirement calculated by the practice technique requirement calculation unit to the in-vehicle terminal,
Upon receiving the driving support information, the in-vehicle terminal searches for and searches a practice route including practice points for causing the driver to practice the practice technical requirements in advance based on the received driving assistance information. An information system for guiding the vehicle according to the practice route. The information system according to claim 1,
The server further includes a caution point extraction unit that extracts a caution point that is a point to be cautioned to the driver when the vehicle travels a route to a destination based on the driving proficiency level,
The distribution information control unit distributes the driving support information including the information on the attention point extracted by the attention point extraction unit to the in-vehicle terminal,
The said vehicle-mounted terminal is an information system which performs the driving assistance to the said driver | operator with respect to the said alerting point based on the received said driving assistance information, if the said driving assistance information is received. The information system according to claim 1,
The distribution information control unit is an information system that changes contents of the driving support information distributed to the in-vehicle terminal according to a date on which the vehicle is scheduled to go to a destination and a current date. A method for providing driving support information from a server to an in-vehicle terminal,
Store the travel history of the vehicle on which the in-vehicle terminal is mounted in the server for each driver,
Based on the travel history and the degree of driving difficulty defined in advance for each driving technology element, the server determines driving proficiency for each driving technology element by the server,
A driving support information providing method for distributing driving support information based on the driving skill level from the server to the in-vehicle terminal. The driving support information providing method according to claim 5,
Based on the driving proficiency level, the server calculates a practice skill requirement that the driver should practice in advance,
Delivering the driving support information including information on the practice technology requirements from the server to the in-vehicle terminal,
When the in-vehicle terminal receives the driving support information, based on the received driving support information, the in-vehicle terminal searches for a practice route including practice points for causing the driver to practice the practice technical requirements in advance. A driving support information providing method for guiding the vehicle according to the searched practice route. The driving support information providing method according to claim 5,
Based on the driving proficiency, the server extracts a warning point that is a point to be alerted to the driver when the vehicle travels a route to the destination,
Delivering the driving support information including information on the alerting point from the server to the in-vehicle terminal,
When the said vehicle-mounted terminal receives the said driving assistance information, the driving assistance information provision method which performs the said driver | operator's driving assistance with respect to the said alerting point by the said vehicle-mounted terminal based on the received said driving assistance information. The driving support information providing method according to claim 5,
A driving support information providing method for changing contents of the driving support information distributed from the server to the in-vehicle terminal according to a date on which the vehicle is scheduled to go to a destination and a current date. An in-vehicle terminal mounted on a vehicle,
A travel history acquisition unit for acquiring a travel history of the vehicle;
A communication unit that transmits the travel history acquired by the travel history acquisition unit to the server in association with the driver of the vehicle, and receives driving support information distributed from the server;
A vehicle-mounted terminal comprising: a driving support unit that provides driving support to the driver according to driving proficiency for each driving technology element of the driver based on the driving support information received by the communication unit. The in-vehicle terminal according to claim 9,
The communication unit receives from the server the driving support information including information on practice technical requirements that the driver should practice in advance calculated based on the driving proficiency level,
The driving support unit searches for a practice route including practice points for allowing the driver to practice the practice technique requirements in advance based on the driving assistance information, and guides the vehicle according to the searched practice route. An in-vehicle terminal that provides driving assistance to the driver. The in-vehicle terminal according to claim 9,
The communication unit receives the driving support information including information on a warning point that is a point to be alerted to the driver extracted based on the driving proficiency level from the server,
The driving support unit is an in-vehicle terminal that provides driving support to the driver by alerting the driver when the vehicle approaches the alerting point based on the driving support information. The in-vehicle terminal according to claim 9,
The driving support unit is an in-vehicle terminal that changes the content of the driving support according to a date on which the vehicle is scheduled to go to a destination and a current date.

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